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Accès ouvert déclaré 2026 article

Combined dark matter search towards dwarf spheroidal galaxies with Fermi -LAT, HAWC, H.E.S.S., MAGIC, and VERITAS

5Citations signalées — pas une note de qualité
179Institutions déclarées
30Pays d’affiliation déclarés

Résumé fourni par la source

Abstract Dwarf spheroidal galaxies (dSphs) are excellent targets for indirect dark matter (DM) searches using gamma-ray telescopes because they are thought to have high DM content and a low astrophysical background. The sensitivity of these searches is improved by combining the observations of dSphs made by different gamma-ray telescopes. We present the results of a combined search by the most sensitive currently operating gamma-ray telescopes, namely: the satellite-borne Fermi -LAT telescope; the ground-based imaging atmospheric Cherenkov telescope arrays H.E.S.S., MAGIC, and VERITAS; and the HAWC water Cherenkov detector. Individual datasets were analyzed using a common statistical approach. Results were subsequently combined via a global joint likelihood analysis. We obtain constraints on the velocity-weighted cross section 〈 σv 〉 for DM self-annihilation as a function of the DM particle mass. This five-instrument combination allows the derivation of up to 2-3 times more constraining upper limits on 〈 σv 〉 than the individual results over a wide mass range spanning from 5 GeV to 100 TeV. Depending on the DM content modeling, the 95% confidence level observed limits reach 1.5×10 -24 cm 3 s -1 and 3.2×10 -25 cm 3 s -1 , respectively, in the τ + τ - annihilation channel for a DM mass of 2 TeV.

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Contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé, mais le titre doit être comparé manuellement.

Titre Crossref
Combined dark matter search towards dwarf spheroidal galaxies with <i>Fermi</i> -LAT, HAWC, H.E.S.S., MAGIC, and VERITAS
Date Crossref
01/03/2026
Éditeur
IOP Publishing
Type
journal-article

Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude et ne compte pas comme une seconde source scientifique indépendante.

Institutions déclarées

Centre National de la Recherche ScientifiqueUniversité Toulouse III - Paul SabatierUniversité Fédérale de Toulouse Midi-PyrénéesInstitut de Recherche en Astrophysique et PlanétologieUniversity of PisaIstituto Nazionale di Fisica Nucleare, Sezione di PisaCalifornia State University Los AngelesIstituto Nazionale di Fisica Nucleare, Sezione di BariPolytechnic University of BariIstituto Nazionale di Fisica Nucleare, Sezione di TorinoUniversity of TurinÉcole PolytechniqueLaboratoire Leprince-RinguetUniversity of WürzburgKavli Institute for Particle Astrophysics and CosmologyUniversity of the WitwatersrandAgenzia Spaziale ItalianaIstituto Nazionale di Fisica Nucleare, Roma Tor VergataGoddard Space Flight CenterUniversity of Maryland, College ParkIstituto di Radioastronomia di BolognaUniversity of PaduaIstituto Nazionale di Fisica Nucleare, Sezione di PadovaIstituto Nazionale di Fisica Nucleare, Sezione di TriesteUniversidad Complutense de MadridUniversidad Autónoma de MadridUniversidad de SalamancaCommissariat à l'Énergie Atomique et aux Énergies AlternativesAstrophysique, Instrumentation et ModélisationCEA Paris-SaclayUniversité Paris CitéUniversité Paris-SaclayGeorge Washington UniversityUniversity of GöttingenUniversity of North FloridaIbaraki UniversityUniversity of Science and Technology of ChinaUniversity of UdineUniversity of TriesteUniversität InnsbruckUniversity of PerugiaIstituto Nazionale di Fisica Nucleare, Sezione di PerugiaUniversität HamburgUniversity of Southern DenmarkCentre for Cosmology and Particle Physics PhenomenologyUniversity of Maryland, Baltimore CountyMahidol UniversityHiroshima UniversityStanford UniversityOsservatorio Astronomico di PadovaNational Institute for AstrophysicsUniversity of California, Santa CruzPurdue University NorthwestInstitució Catalana de Recerca i Estudis AvançatsInstitut d'Estudis Espacials de CatalunyaInstitute of Space SciencesUniversity of Nova GoricaLos Alamos National LaboratoryUniversidad Nacional Autónoma de MéxicoUniversidad Autónoma de ChiapasUniversidad Michoacana de San Nicolás de HidalgoPennsylvania State UniversityMichigan State UniversityNational Institute of Astrophysics, Optics and ElectronicsInstitute of Nuclear Physics, Polish Academy of SciencesInstituto Politécnico NacionalBenemérita Universidad Autónoma de PueblaUniversity of Wisconsin–MadisonUniversidad de GuadalajaraTecnológico de MonterreyUniversidad de La LagunaInstituto de Astrofísica de CanariasMax Planck Institute for Nuclear PhysicsMichigan Technological UniversityFriedrich-Alexander-Universität Erlangen-NürnbergUniversidad Politécnica de PachucaUniversity of UtahUniversity of SeoulUniversity of MonterreyUniversity of New MexicoUniversidad Autónoma del Estado de HidalgoShanghai Jiao Tong UniversityLaboratoire d’Annecy de Physique des ParticulesDublin Institute For Advanced StudiesHeidelberg UniversityUniversité Savoie Mont BlancUniversity of GroningenJanssen (France)Laboratoire Univers et ThéoriesUniversity of NamibiaNorth-West UniversityLaboratoire de Physique Nucléaire et de Hautes ÉnergiesUniversity of PotsdamLinnaeus UniversityHumboldt-Universität zu BerlinInstitut de Recherche sur les Lois Fondamentales de l'UniversUniversity of TübingenUniversité Paris Sciences et LettresSorbonne UniversitéInstitut National de Physique Nucléaire et de Physique des ParticulesUniversity of WarsawCentre de physique des particules de MarseilleUniversity of OxfordWestern Sydney UniversityAix-Marseille UniversitéLaboratoire de Physique des deux infinis BordeauxJagiellonian UniversityNicolaus Copernicus UniversityNicolaus Copernicus Astronomical CenterPolish Academy of SciencesUniversity of LeicesterUniversity of AmsterdamThe University of AdelaideA. Alikhanyan National LaboratoryKonan UniversityKavli Institute for the Physics and Mathematics of the UniverseThe University of TokyoInstituto de Astrofísica de AndalucíaInternational Center for Relativistic AstrophysicsMax Planck Institute for PhysicsInstitute for High Energy PhysicsTU Dortmund UniversityUniversity of ZagrebCentro Brasileiro de Pesquisas FísicasUniversity of ŁódźCentro de Investigaciones Energéticas, Medioambientales y TecnológicasETH ZurichUniversitat Autònoma de BarcelonaUniversitat de BarcelonaUniversity of BergenUniversity of CataniaIstituto Nazionale di Fisica Nucleare, Sezione di CataniaPort d'Informació CientíficaUniversity of RijekaUniversity of GenevaDeutsches Elektronen-Synchrotron DESYInternational Center for Relativistic Astrophysics NetworkUniversity of SplitUniversity of OsijekUniversity of TurkuUniversity of OsloTokai UniversityUniversity of SienaSaha Institute of Nuclear PhysicsHomi Bhabha National InstituteBulgarian Academy of SciencesFinnish Youth Research SocietyUniversity of OuluChiba UniversityObayashi (Japan)Nagoya UniversityKyoto UniversityIstituto Nazionale di Fisica Nucleare, Sezione di Roma IColumbia UniversityDePauw UniversityUniversity of DelawareCenter for Astrophysics Harvard & SmithsonianWashington University in St. LouisUniversity of California, Los AngelesCalifornia Polytechnic State UniversityPurdue University West LafayetteUniversity of MinnesotaBall State UniversityDartmouth CollegeAstrophysics Science DivisionUniversity of IowaRuhr University BochumIowa State UniversityMcGill UniversityUniversity College DublinOllscoil na Gaillimhe – University of GalwayBarnard CollegeQueen's UniversityArthur B. McDonald-Canadian Astroparticle Physics Research InstituteMunster Technological UniversityUniversity of AlabamaSeoul National UniversityUniversity of IndianapolisIndiana University – Purdue University Indianapolis

Une affiliation ne permet pas de déduire la nationalité d’un auteur.

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